Fastener for papers and other materials



0 P. SIBLEY.

FASTENER FOR PAPERS AND OTHER MATERIALS.

7 APPLICATION FILED AUG. 7, I920- Patented Oct. 18, 1921.

RIM

7 barrel portion closed at one end and CEDRIC PUTNAM SIBLEY, OF DETROIT, MICHIGAN.

FASTENER FOR PAPER-S AND OTHER MATERIALS.

Specification of Letters Patent.

Patented Oct. 18, 1921.

Application filed August 7, 1920. Serial No. 401,934.

To aZZ whom izf may concern:

Be it known that I, Gnome PUTNAM SIB- LEY, a citizen of the United States, residing at Detroit, in the county of lVayne and State of Michigan, have invented a certain new and useful Improvementin Fasteners for Papers and other Materials, of which the following is a full, clear, and exact description.

The object of this invention is to improve the construction of the well-known Challenge eyelet, rivet or paper-fastener, forming the subject of Patent N 0. 358,225, granted February 22, 1887, whereby an equally good, if not superior article is produced at a very considerable saving in stock.

The invention consists of an eyelet or similar fastener formed from a blank having a solid center and longitudinally slitted ends, and provided with excisions oppositely arranged relatively to the solid center, so that when the eyelet is formed there will be a having a flange at its other end formed from the slitted ends, the excisions permitting the formation of a cylindrical barrel divided longitudinally. by the slits and adapted to be collapsed in the setting of the eyelet, as I will proceed now to explain and finally claim.

Distinguishing the present invention from the Challenge eyelet, it is to be noted that in the former the blank is rectangular and has its ends slitted to form a longitudinally divided barrel and a base flange, with a solid center having opposite excisions, and little or no appreciable scrap, while the latter 1S cut out or stamped in star shape from a strip, at considerable loss of stock as scrap.

In the accompanying drawings illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a plan view of the blank showing the excisions alongside. Fig. 2 is a plan view of the slitted blank. Fig. 3 is an elevation of the eyelet, and Fig. 4 is a top plan View thereof. Fig. 5 is an elevation of the eyelet in process of setting. Fig. 6 is a top plan view, and F ig. 7 is a bottom plan view thereof.

In the manufacture of this eyelet or fastener, a strip 1 of suitable metal of rectangular shape, has its opposite ends slitted longitudinally, as at 2, to form two sets of strip or fingers 3, of like number and preferably three, leaving a solid intermediate portion 4. Opposite this solid portion excisions 5 are made in the edges of the strip. The blank thus prepared is then drawn up or otherwise formed into a cylindrical or tubular barrel portion 6, one end of which is closed by the solid portion 4:, the strips 3 forming the barrel and a laterally extending flange or base 7 at the open end and opposite the closed end formed by the solid portion A. The excisions 5 facilitate the shaping of the barrel and the subsequent collapsing thereof in setting the eyelet.

In use, the closed end of the barrel is passed through the papers or other objects to be fastened together, o that the flange abuts against the outer object, and then the barrel is collapsed so as to spread out the strips 3 laterally and flatten them out upon the opposite outer object. Figs. 5 and 6 indicate the beginning of the collapsing operation, while Fig. 7 shows the eyelet set.

Thus a many-strip or finger article is formed, with a minimum of waste or scrap, as indicated by the small pieces 8, Fig. 1, cut from the blank, and hence the eyelets may be very economically manufactured.

The invention is susceptible of variations within the principle and scope of the claims following.

lVhat I claim is:

1. A fastener for papers and other objects, having one end closed and the remainder divided longitudinally into strips of even num ber and forming a substantially cylindrical collapsible barrel and a laterally spread flange or base, there being excisions in the barrel adjacent to the closed end to facilitate the collapsing of the barrel.

2. A fastener for papers and other objects, having a closed end and a longitudinally slitted barrel composed of a plurality of strips or fingers of even number, said strips or fingers terminating in laterally extended portions forming a flange, said barrel having oppositely arranged excisions adjacent to the closed end to facilitate the setting of the fastener.

8. A fastener for papers and other objects, having a closed end and a longitudinally slitted barrel composed of a plurality of strips or fingers of even number, there being cut out portions between the closed end and adjacent parts of the strips or fingers, said strips or fingers terminating in laterally extended portions forming a flange.

4. The art of making hollow collapsible fasteners for papers and other objects, with little waste or scrap, same comprising slitting a metal blank longitudinally from opposite ends in an inward direction and toward a solid middle portion so as to provide a plurality of strips, excising portions of the blank adjacent to the solid middle portion, bending said strips downwardly from the solid middle port-ion in substantially parallel relation to form the hollow portion of the fastener, and outwardly fianging the free ends of the strips to form a laterally extending flange.

5. The art of making tubular collapsible paper fasteners, with little waste or scrap, same comprising slitting a rectangular blank tubular portion having one end closed and the other open, and spreading the ends of the strips at the open end of the barrel into a laterally extending base flange.

In testimony whereof I have hereunto set my hand this 20th day of July, A. D. 1920.

GEDRIC PUTNAM SIBLEY.

Witnesses: r

ALLEN E. BRIGGS, MINNIE FITCH. 

